linux-kernel - Re: [PATCH 4/4] dt-binding:perf: Add Amlogic DDR PMU

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Date:   Thu, 14 Jul 2022 11:22:42 +0800
From:   Jiucheng Xu <jiucheng.xu@...ogic.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-amlogic@...ts.infradead.org>, <devicetree@...r.kernel.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Chris Healy <cphealy@...il.com>
Subject: Re: [PATCH 4/4] dt-binding:perf: Add Amlogic DDR PMU

Thanks for your time ^^.

On 7/12/2022 3:15 PM, Krzysztof Kozlowski wrote:
> [ EXTERNAL EMAIL ]
>
> On 12/07/2022 08:36, Jiucheng Xu wrote:
>> Add binding documentation for the Amlogic G12 series DDR
>> performance monitor unit.
> You need to fix subject - use a prefix matching subsystem. Space after
> each ':'.
I will make the change.
>
>> Signed-off-by: Jiucheng Xu <jiucheng.xu@...ogic.com>
>> ---
>>   .../devicetree/bindings/perf/aml-ddr-pmu.yaml | 51 +++++++++++++++++++
>>   MAINTAINERS                                   |  1 +
>>   2 files changed, 52 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/perf/aml-ddr-pmu.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/perf/aml-ddr-pmu.yaml b/Documentation/devicetree/bindings/perf/aml-ddr-pmu.yaml
>> new file mode 100644
>> index 000000000000..c586b4ab4009
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/perf/aml-ddr-pmu.yaml
> Filename: aml,g12-ddr-pmu.yaml
I will make the change.
>
>> @@ -0,0 +1,51 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/perf/aml-ddr-pmu.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Amlogic G12 DDR performance monitor
>> +
>> +maintainers:
>> +  - Jiucheng Xu <jiucheng.xu@...ogic.com>
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - enum:
>> +          - aml,g12-ddr-pmu
>> +      - items:
>> +          - enum:
>> +              - aml,g12-ddr-pmu
>> +          - const: aml,g12-ddr-pmu
> This does not make any sense. Why do you use two compatibles
> "aml,g12-ddr-pmu", "aml,g12-ddr-pmu" after each other?
Sorry, I think I have a wrong understanding. I will make the change.
>
>> +
>> +  reg:
>> +    maxItems: 2
> You need to describe the items.
I will make the change.
>
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +required:
>> +  - compatible
>> +  - model
>> +  - dmc_nr
>> +  - chann_nr
> How these ended up here?
> No underscores.
I will make the change.
>
>> +  - reg
>> +  - interrupts
>> +  - interrupt-names
> Also something new. No.
I will make the change.
>
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +          ddr_pmu: ddr_pmu {
> Wrong indentation. 4 spaces for DTS example.
>
> Generic node name, so "pmu", no underscores in node names.
Okay, I will make the change.
>
>> +                  compatible = "amlogic,g12-ddr-pmu";
>> +                  model = "g12a";
>> +                  dmc_nr = <1>;
>> +                  chann_nr = <4>;
> This does not pass the test. Please do not send untested bindings.

Sorry,  due to some problems, I got wrong patch sent. I will make the 
change.


Thanks & Best Regards,

Jiucheng

>
>
> Best regards,
> Krzysztof
>